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Powellite and Andalusite Physical Properties


Andalusite and Powellite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.23   
3.05-3.21   

Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)   

Cleavage
{111} Distinct   
Good on {110}, poor on {100}   

Mohs Hardness
3.5-4   
7.5   

Chemical Composition
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   

Optical Properties >>
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Powellite and Andalusite Chemical Formula

While comparing Powellite and Andalusite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Powellite and Andalusite chemical formula.

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Powellite and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Powellite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Powellite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.

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